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Have mercy, it's John Stamos, super spy!
The 51-year-old actor paid a visit to his old digs and what is now an iconic pop culture landmark — the San Francisco house seen in the opening theme of the cult '80s and '90s family sitcom "Full House," the series that made him famous.
His presence appeared to have been completely unnoticed by a group of visitors. Stamos, who played Uncle Jesse on the show, posted on his Instagram page on Friday a photo of himself standing on the sidewalk near the residence while three people are seen closer to the foot of a flight of brick stairs leading up to the townhouse, which is, in real life, occupied and unlike nearby homes, gated off.
"Boy, these youngsters have 0.0 idea what they're missing," he wrote. "#Fullhousehouse. #TURNAROUND."
"Aww man I was there at that same time but sitting in the grass in Alamo Square," a fan replied. "I remember seeing those kids yesterday if only I knew you were down there!!!!"
Alamo Square Park, another tourist attraction located about one mile away, is also featured in Full House's opening credits. It borders seven "Painted Lady"-style homes resembling the one seen on the show.
On "Full House," which still airs in reruns, Jesse, his wife Becky and their twin sons lived in the house, which was owned by his brother-in-law Danny Tanner, a widower and father to three daughters: DJ, Stephanie and Michelle. Jesse and fellow pal, Joey, who lived in the basement, helped Tanner raise his kids.
The "Full House" home was built in 1900 and last sold for $1.8 million in 2006. Only exterior shots of it were used for the series. The interior of the Tanner family home was actually a well-decorated (and super) Los Angeles sound stage.
Bob Saget, who played Tanner, stopped by the house in 2013 and, naturally, drew spectacular reactions from Stamos and from Dave Coulier, who played Joey.
This story was originally published on March 7 at 6:07 p.m.